Acts 10:1-48 (NIV)
1 At Caesarea there was a man named Cornelius, a centurion in what was known as the Italian Regiment. 2 He and all his family were devout and God-fearing; he gave generously to those in need and prayed to God regularly. 3 One day at about three in the afternoon he had a vision. He distinctly saw an angel of God, who came to him and said, “Cornelius!” 4 Cornelius stared at him in fear. “What is it, Lord?” he asked. The angel answered, “Your prayers and gifts to the poor have come up as a memorial offering before God. 5 Now send men to Joppa to bring back a man named Simon who is called Peter. 6 He is staying with Simon the tanner, whose house is by the sea.” 7 When the angel who spoke to him had gone, Cornelius called two of his servants and a devout soldier who was one of his attendants. 8 He told them everything that had happened and sent them to Joppa. 9 About noon the following day as they were on their journey and approaching the city, Peter went up on the roof to pray. 10 He became hungry and wanted something to eat, and while the meal was being prepared, he fell into a trance. 11 He saw heaven opened and something like a large sheet being let down to earth by its four corners. 12 It contained all kinds of four-footed animals, as well as reptiles of the earth and birds of the air. 13 Then a voice told him, “Get up, Peter. Kill and eat.” 14 “Surely not, Lord!” Peter replied. “I have never eaten anything impure or unclean.” 15 The voice spoke to him a second time, “Do not call anything impure that God has made clean.” 16 This happened three times, and immediately the sheet was taken back to heaven. 17 While Peter was wondering about the meaning of the vision, the men sent by Cornelius found out where Simon’s house was and stopped at the gate. 18 They called out, asking if Simon who was known as Peter was staying there. 19 While Peter was still thinking about the vision, the Spirit said to him, “Simon, three men are looking for you. 20 So get up and go downstairs. Do not hesitate to go with them, for I have sent them.” 21 Peter went down and said to the men, “I’m the one you’re looking for. Why have you come?” 22 The men replied, “We have come from Cornelius the centurion. He is a righteous and God-fearing man, who is respected by all the Jewish people. A holy angel told him to have you come to his house so that he could hear what you have to say.” 23 Then Peter invited the men into the house to be his guests. The next day Peter started out with them, and some of the brothers from Joppa went along. 24 The following day he arrived in Caesarea. Cornelius was expecting them and had called together his relatives and close friends. 25 As Peter entered the house, Cornelius met him and fell at his feet in reverence. 26 But Peter made him get up. “Stand up,” he said, “I am only a man myself.” 27 Talking with him, Peter went inside and found a large gathering of people. 28 He said to them: “You are well aware that it is against our law for a Jew to associate with a Gentile or visit him. But God has shown me that I should not call any man impure or unclean. 29 So when I was sent for, I came without raising any objection. May I ask why you sent for me?” 30 Cornelius answered: “Four days ago I was in my house praying at this hour, at three in the afternoon. Suddenly a man in shining clothes stood before me 31 and said, ‘Cornelius, God has heard your prayer and remembered your gifts to the poor. 32 Send to Joppa for Simon who is called Peter. He is a guest in the home of Simon the tanner, who lives by the sea.’ 33 So I sent for you immediately, and it was good of you to come. Now we are all here in the presence of God to listen to everything the Lord has commanded you to tell us.” 34 Then Peter began to speak: “I now realize how true it is that God does not show favoritism 35 but accepts men from every nation who fear him and do what is right. 36 You know the message God sent to the people of Israel, telling the good news of peace through Jesus Christ, who is Lord of all. 37 You know what has happened throughout Judea, beginning in Galilee after the baptism that John preached– 38 how God anointed Jesus of Nazareth with the Holy Spirit and power, and how he went around doing good and healing all who were under the power of the devil, because God was with him. 39 “We are witnesses of everything he did in the country of the Jews and in Jerusalem. They killed him by hanging him on a tree, 40 but God raised him from the dead on the third day and caused him to be seen. 41 He was not seen by all the people, but by witnesses whom God had already chosen–by us who ate and drank with him after he rose from the dead. 42 He commanded us to preach to the people and to testify that he is the one whom God appointed as judge of the living and the dead. 43 All the prophets testify about him that everyone who believes in him receives forgiveness of sins through his name.” 44 While Peter was still speaking these words, the Holy Spirit came on all who heard the message. 45 The circumcised believers who had come with Peter were astonished that the gift of the Holy Spirit had been poured out even on the Gentiles. 46 For they heard them speaking in tongues and praising God. Then Peter said, 47 “Can anyone keep these people from being baptized with water? They have received the Holy Spirit just as we have.” 48 So he ordered that they be baptized in the name of Jesus Christ. Then they asked Peter to stay with them for a few days.

Acts 10:1-8

Cornelius, a gentile and a God fearer, receives a vision from the Lord in which he sees an angel who instructs him to send men to Joppa to get Peter.

Acts 10:9-23

Peter receives his own vision from the Lord which would shake his belief system in a major way. I think it might be noteworthy that Peter debates with the Lord three times. Perhaps it connects with his three times denial, but I think it is even more connected to Jesus admonition to him to feed His sheep three times. Having been instructed by the Lord to go with them, he invites them to be his guests for the night and the following day he follows them to Cornelius house.

Acts 10:24-48

Cornelius has assembled his relatives and close friends in preparation for Peter’s arrival, so when Peter arrives there is a large gathering of people. Peter tells them that even though it is against Jewish law to visit or associate with gentiles, God had showed him that he should not call any man impure or unclean. Cornelius tells Peter the details of his vision and then Peter does what he has been doing throughout the book of Acts, he preaches the gospel. While he is preaching the good news, the Holy Spirit fell on all who heard the message. This was a big deal for the Jewish believers to see and comprehend, that gentiles were receiving the gift of the Holy Spirit as they had. Peter orders that these gentiles be baptized and he stays with them for a few days. He is going to have to answer for all this when he goes back to Jerusalem and we will read about it in Chapter 11.

Remember Acts 1:8 where Jesus said:

Acts 1:8 (NIV)
8 But you will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth.”

We have seen the Holy Spirit fall on the people in Jerusalem, then in Samaria, and now, with the events in Cornelius house, the beginning of the ends of the earth.